Species Classification: Hadrosauridae.

Acristavus

Acristavus: Research Database Hadrosauridae (Ornithischia) · Late Cretaceous (~81–79 MYA) &middot> North America — USA (Montana, Two Medicine Formation)   Research Note: Acristavus was a saurolophine hadrosaurid from the Late Cretaceous Two Medicine Formation of Montana. As a non-crested saurolophine, it provides important data on hadrosaurid diversity and evolution in the Late Cretaceous of North … Read more

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